[PATCH] leds: netxbig: Add of_node_put() in netxbig_leds_get_of_pdata()

[Nishka Dasgupta <nishkadg.linux@gmail.com>]

The variable gpio_ext_np in the function netxbig_leds_get_of_pdata takes
the value returned by of_parse_phandle; hence, it must be put in order
to prevent a memory leak. Add an of_node_put for gpio_ext_np before a
return statement, and move a pre-existing of_node_put statement to right
after the last usage of this variable.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 drivers/leds/leds-netxbig.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index 10497a466775..654d83bbc450 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -388,12 +388,14 @@ static int netxbig_leds_get_of_pdata(struct device *dev,
 	}
 
 	gpio_ext = devm_kzalloc(dev, sizeof(*gpio_ext), GFP_KERNEL);
-	if (!gpio_ext)
+	if (!gpio_ext) {
+		of_node_put(gpio_ext_np);
 		return -ENOMEM;
+	}
 	ret = gpio_ext_get_of_pdata(dev, gpio_ext_np, gpio_ext);
+	of_node_put(gpio_ext_np);
 	if (ret)
 		return ret;
-	of_node_put(gpio_ext_np);
 	pdata->gpio_ext = gpio_ext;
 
 	/* Timers (optional) */
-- 
2.19.1